196 MANDIBULATA. COLEOPTERA. 



The slightly punctulate thorax, elongate central tuhercle on the clypeus, and 

 smoothly striated elytra, are the chief distinguishing characters of this species. 



Found within the metropolitan district. 



Sp. 23. nitidus. Ater, nitidissimus, clypeo tuberculis tribus subcequalibus , elytris 



punctato-striatis, interstitiis Iwvissimis. (Long. corp. 2J lin.) 

 Ap. nitidus. Kirby MSS.—Steph. Catal. 1 10. No. 1137. 



Black, very glossy: clypeus scarcely emarginated, with three nearly equal tu- 

 bercles : thorax very finely and distantly punctulated : elytra pitchy-black, 

 punctate-striate ; the interstices slightly convex and impunctate : legs pitchy- 

 black. 



The impunctate interstices of the striae on the elytra, united to the punctations 

 of the striae themselves, the subaequal occipital tubercles, and very glossy sur- 

 face, distinguish this species. 



Taken near London and in Suffolk. 



Sp. 24. lucens. Ater, nitidissimus, clypeo emarginato, tuberculis tribus, inter- 

 medio subcornuto, elytris punctato-striatis, interstitiis Iwvissimis. (Long. 

 corp. 2^ lin.) 



Ap. lucens. Gyllenhalf—Steph. Catal 110. No. 1138. 



Allied to the last : deep very glossy black : clypeus emarginated, with three 

 posterior tubercles, the central one elongate : thorax rather coarsely punctate 

 on the disc, the lateral margin with an obscure piceous spot : elytra punctate- 

 striate, the interstices rather convex, impunctate : body beneath and legs 

 pitchy-black. 



From Ap. granarius, which has an obscure reddish or piceous spot on the lateral 

 margins of the thorax, this is known by the coarsely punctate surface of the 

 latter, and distinctly trituberculated clypeus; by which characters it also 

 differs from the preceding species. 



Found within the metropolitan district, and in Norfolk. 



Sp. 25. haemorrhous. Subdepressus, ater, subobsctirus, clypeo emarginato, tuber- 

 culis tribus wqualibus; thorace sparse pmnctato, elytris apice piceo-r/'fis, punc- 

 tato-striatis. (Long. corp. 2^ lin.) 



Ap. haemorrhous. Kirby MSS.—Steph. Catal. 110. No. 1139. 



Slightly depressed, black, somewhat opaque: clypeus emarginate with three 

 equal tubercles posteriorly: thorax rather sparingly and finely punctate, 

 immaculate : elytra pitchy-black, with the apex pitchy-red, punctate-striate ; 

 the interstices punctate: abdomen and legs rufo-piceous. 



The slightly depressed form of this species, with its obscure surface, the 

 sparingly punctate thorax, and rufous-tipped elytra, are its chief points 

 of distinction. 



